Remove a green screen from video

Remove a green screen — free credits

One second of green screen, two ways

The test clip is a 1280×720, 30 fps stock shot of a man talking in front of a green screen. It is a realistic one rather than a studio ideal: the green is dark and unevenly lit, there are creases in the backdrop, and he wears a black T-shirt. We cut one second from it (0.97 s, 29 frames) and removed the background twice.

• AI cutout — the same model and settings this site uses for video, on the uploaded clip as it was. It took 12.5 seconds and would cost 1 credit.
• Chroma key — FFmpeg's chromakey filter, with the key colour sampled from the screen. We tried six settings and kept the best one (similarity 0.03, blend 0.03).

What the edges show

• Green fringe. The chroma key leaves a green rim along the hair tips and the edge of the hand — the screen's colour reflected onto the subject. The AI cutout shows none in this clip.
• Uneven light. The darker lower-left corner of the screen survives the key as a grey patch. Raising the tolerance clears it, but then the black T-shirt starts to turn see-through: a dark shirt and a dark green sit too close together for one tolerance to separate them.
• Softness. The keyed hair is a little crisper; the AI edge is slightly softer. On a busy background that softness is rarely visible; on a flat colour it can be.

The finished AI cutout is a 1-second transparent WebM (95 KB). Drop it onto the free transparency checker to see it over any colour.

When a chroma key is still the better tool

A key is free, runs in your editor in real time, and has no length limit. With a bright, evenly lit screen, a subject standing well away from it, and no green in the wardrobe, a good keyer in Premiere Pro, Resolve or After Effects does excellent work — and has more controls than the FFmpeg filter used here.

The AI route earns its place when the footage fights the key: an uneven or wrinkled screen, a backdrop that is too dark, dark or greenish clothing, fine hair, or green light spilling onto the subject. It also needs no green screen at all, so the same upload works for footage shot anywhere.

Remove a green screen in three steps

1. Upload the clip — up to 60 seconds and 200 MB. Anything above 1080p or 30 fps is converted to 1080p 30 fps automatically.
2. The AI cuts the subject out, green screen and all. Every finished job is checked to carry a real alpha channel before the download appears.
3. Download the format you need — transparent WebM for web and OBS, and the ProRes 4444 master on clips up to 15 seconds for editing software.

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